Drive mechanism for milking machines



June 11., 1929. R, L, HINMAN I 1,717,337

DRIVE MECHANISM FOR MILKING MACHINES Filed Feb'. 10, 1927 -z sheets-sheet 1 e I E/vraf? QNHUQNNN@ m. Q5 Y `4 TWIN June ll, 1929.

DRIVE MEcHANIsM FORMILKING MACHINES Q, t QN Qv w Cil Patented June 11, 1929.

`UNITED STATES eArSENT OFFICE.

RALPH L. HINMAN, 0F ONEDA, NEW YORK, ASSIGNOR TO HINMAN MILKING `llVA- i CHINE COMPANY INC., OFONEDA, NEW YORK,V A CORPORATION OF NEW YORK.

DRVE MECHANSM FOR MLKNG MACHNES.

Application filedFebruary 10, 1927. Serial No. 167,210.

Other objects and advantages relate to the' details of the structure and the form and relation of the parts thereof, all as will more fully appear from the following description taken in connection with the accompanying drawings, in which:

Figure l is an elevation of the mechanism secured to anl ordinary form of stanchion structure.

Figure 2 isa section on line 2 2, Figure l.

Figure 3 is a section on line 8 3, Figure 2.

Figure 4; is a longitudinal sectionthrough the mechanism.

Figure 5 is a section on line 5 5, Figure l.

Figure 6 is a section on line 6 6, Figure l.

Figure 7 is a view partially in section of the means for securing the connecting rod to the chain or belt.

The structure as shown comprises two spaced brackets 1 of similar form and shape. Each of these brackets 1 comprises a plate Q formed with recesses 3 in its upper and lower edges for the reception of bolts 4 by means of which the bracket is secured to a stanchion frame 5 As best shown in Figure 6, this back plate Q is preferably formed with a concavity in its rear surface to adapt the bracket for more eflicient securement to a stanchion frame formed of pipe or cylindrical bars, as indicated in dotted lines, Figure 6. y

Each of the brackets 1 also includes a central flange G that extends forwardly from the central portion of the bracket and preferably projects slightly above and slightp ly below the plate 2 the lower portion of the flange 6 being recessed at 7 for the reception of a milking machine drive rod 8 An angle bar Q of a length suliicient to extend between the flanges 6 is provided and one wall 10 of the angle bar rests upon the upper surface 0f the stanchion frame by the mere use of the bolts 4l the drive rod sliding in the recesses 7 in the lower forward portion of the fianges 6 For the purpose of reciprocating the rod 8 this rod has a bracket l-l rigidly secured to it in any suitable manner 'as by bolts l5 the bracketincluding a portion which projects upwardly 'between the stanchion frame 5 and the wall 12 of the angle bar 9 One end of a connecting rod 16 is pivotally secured to the upper end of the bracket lt and the opposite end of the connecting rod 16 is preferably connected to the chain or belt 17 by means of a pivot pin 18 which pin in this illustration also forms the means for pivotally connecting two links of the chain l7 The chain 17 moves over a pair of spur gears 19- and 20 respectively. The gear 19- is splined to a shaft 2l which extends outwardly through the wall 12 and through a sleeve 22 mounted in a bearing 23 secured to the wall 12- in any suitable manner, as by screws Q4 A pulley 9.5- is mounted upon the outer end of the shaft 21 'and is secured to the rshaft in any suitable manner, as by a set 32 secured to the wall l2 in any suitable manner as by screws S3- The flange S4- on the shaft 29 is held againstthesleeve 3l by a cap plate 35- secured to the end of the shaft, as by screw 36 the outer portion of the cap plate resting in Contact with the outer end of the sleeve 8l- Preferably, as best illustrated in Figure f3, the bushing -30- is eccentrically mounted in the sleeve -31- so that by rotation of the sleeve -8lthe gear -20 can be moved toward and from the gear -19-, thereby providing an adjustment for maintaining the chain or belt 417- tight. i

The drive rod -8- in addition to its support in the recesses -7- is slidably secured to the stanchion frame in any usual manner, as by guides 40. The pumps lllmay be supported in any usual manner and have their piston rods 4Q- removably secured to the drive rod 8- in any usual manner, and altho I have shown and described a specific structure as constituting a perhaps preferred embodiment of the'invcntion, I do not desire to restrict myself to the details of form, arrangement or relation of the parts thereof, as various changes and modifications may be made Within the scope of the appended claims.

I claim: j

l. A drive mechanism for milking machinos comprising a pair of spaced brackets having forwardly projecting flanges, means for securing the brackets to a stanchion frame, an angle bar secured at its opposite ends to respective flanges and having one of its walls substantially horizontally disposed and extending across the upper ends of the flanges and its other wall substantially vertically disposed and extending downwardly along the front edge of the flanges, a pair of rotary members supported from said angle bar, a belt mounted on the gears for movement therewith, a drive rod and a c0nnecting rod actuated by the belt to reciprocate the drive rod.

2. A drive mechanism for milking machines comprising a pair of spaced brackets having forwardly projecting' flanges, means for securing the brackets to a stanchion frame, an angle bar secured at its opposite ends to respective flanges and having one of its walls substantially horizontally disposed and extending across the upper ends of the flanges and its other wall substantially vertically disposed and extending downwardly along the front edge of the flanges, a pair of rotary members supported from said angle bar, a belt mounted on the gears for movement therewith, a drive rod and a connecting rod actuated by the belt to reciprocate the drive rod, and means for adjusting one of the rotary members to tension the belt.

3. A drive mechanism for milking machines comprising a pair of spaced brackets having bolt-receiving openings, each bracket formed with a forwardly projecting flange having a recess in its forward edge, a drive rod mounted in said recesses, an angle bar extending between and secured to the flanges, a pair of gears journaled on the angle bar, a chain belt moving with the gears, a bracket on the drive rod, a connecting rod having one end pvotally secured to said 'bracket on the drive rod and its other end connected to the chain belt, and a motor mounted on the angle bar and connected to drive one of said gears for reciprocating the drive rod.

ln witness whereof .I have hereunto set my hand this 4th day of February, 1927.

RALPH L. HINMAN 

